24-70mm f/2.8 Focal Length And Maximum Aperture/ 18 Elements In 14 Groups Lens Construction/ 88mm Filter Size Diameter/ Minimum Focusing Distance Of 0.69 ft./0.21m (Wide), 1.25 ft./0.38m (Tele)/ Optical Image Stabilization Of Up To 5 Stops Of Shake Correction/ Control Ring For Direct Setting Changes/ 12 Pin Communication System/ Black Finish